Degrees of Faith

We find Jesus talking about different stages of 'faith' in the gospel books of the Bible. As I studied the Bible, I found these challenging my faith. 

 As  we read the list below, may we always strive towards the highest level Jesus commends?

1 Mk 4:40 ... 'no faith’... fear rules...disciples

2. Mt 14:31...'Little faith'... doubt arose... disciples

3. Jn 19:27 ... 'doubt and faith'... walking by sight...Thomas the disciple

4. M.t. 17:20 'mustard seed faith'..(I consider this as a living, growing faith)..mountain  moving.

5. Mt 15:28  ...'great faith'... prayer granted... gentile woman

          6. Mt 8:10 ... 'such great faith'... healing by the Word of Jesus...
                              Centurion who stood proxy for his  helper... 
                              Jesus commends this degree of faith